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Use of certain polymers as a charge store

a polymer and charge storage technology, applied in the field of electrochemical cells, can solve the problem that the discharge capacity of batteries produced with these polymers described in the literature is only low

Active Publication Date: 2018-04-19
INNOVATIONLAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about polymers that can be used in secondary batteries with higher cell voltage and capacity. These polymers have a more compact structure and are easier to prepare than other polymers described in the prior art. These polymers can be made from readily available starting materials in a simple and uncomplicated manner. The polymers have a high redox potential, which allows higher cell voltages and energy densities. These polymers also have a flat charging / discharging plateau, which makes them more efficient than other materials. Overall, the invention provides an improved solution for the development of secondary batteries with high performance.

Problems solved by technology

Although these have a redox potential above that of the frequently used nitroxide radicals and hence enable higher cell voltages when the dialkoxybenzene-containing polymers are used as cathode material, batteries which have been produced with these polymers described in the literature exhibit only low discharge capacities.
In addition, synthesis complexity is a further criterion for the usability of organic materials as active electrode materials.

Method used

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  • Use of certain polymers as a charge store
  • Use of certain polymers as a charge store
  • Use of certain polymers as a charge store

Examples

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examples

1. General Remarks

1.1 Abbreviations

[0238]AIBN—azobis(isobutyronitrile); DMAP—dimethylaminopyridine; DMF—dimethylformamide; NEt3—triethylamine; TBAClO4—tetrabutylammonium perchlorate; TBAPF6—tetrabutylammonium hexafluorophosphate; THF—tetrahydrofuran; Tol.—toluene.

[0239]The numbers in brackets given in the reaction schemes which follow relate to the respective section in which the synthesis has been described.

1.2 Test Methods

[0240]1H and 13C NMR spectra were recorded with a Bruker AC 300 (300 MHz) spectrometer at 298 K. For cyclic voltammetry and galvanostatic experiments, a Biologic VMP 3 potentiostat was available. Size exclusion chromatography was conducted on an Agilent 1200 series system (degasser: PSS, pump: G1310A, autosampler: G1329A, oven: Techlab, DAD detector: G1315D, RI detector: G1362A, eluent: DMAc+0.21% LiCl, 1 ml / min, temperature: 40° C., column: PSS GRAM guard / 1000 / 30 A).

2. Inventive Examples

2.1 I1: Synthesis and Polymerization of 4,4′-(((2,5-di-tert-butyl-1,4-phenyl...

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Abstract

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. These secondary batteries are especially notable for high cell voltages, and simple and scalable processing and production methods (for example by means of screen printing).

Description

[0001]The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. These secondary batteries are especially notable for high cell voltages, high power densities and simple and scalable processing and production methods (for example by means of screen printing).BACKGROUND OF THE INVENTION[0002]Organic batteries are electrochemical cells which use an organic charge storage material as active electrode material for storing electrical charge. These secondary batteries are notable for their exceptional properties, such as fast chargeability, long lifetime, low weight, high flexibility and ease of processibility. Active electrode materials which have been described for charge storage in the prior art are various polymeric structures, for example polymeric compounds having organic nitroxide radicals as active un...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01M4/60C08F12/22C08F12/32C08F12/34H01M4/04H01M4/137
CPCH01M4/606C08F12/22C08F12/32C08F12/34C09D125/18Y02E60/10
Inventor SCHUBERT, ULRICHWILD, ANDREASHAEUPLER, BERNHARD
Owner INNOVATIONLAB
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